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228 Start-Up 5 If graphical login still fails, do a console login with Ctrl + Alt + F1 . Try to start an X session on another display, the first one (:0) is already in use: startx -- :1 This should bring up a graphical screen and your desktop. If it does not, check the log files of the X Window System (/var/log/Xorg.displaynumber .log) or the log file for your desktop applications (.xsession-errors in the user's home directory) for any irregularities. 6 If the desktop could not start because of corrupt configuration files, proceed with Section 9.4.3, “ Login Successful but GNOME Desktop Fails ” (page 230) or Section 9.4.4, “ Login Successful but KDE Desktop Fails” (page 230). The following are some common reasons why network authentication for a particular user might fail on a specific machine: • The user might have entered the wrong password. • The username exists in the machine's local authentication files and is also provided by a network authentication system, causing conflicts. • The home directory exists but is corrupt or unavailable. Perhaps it is write protected or is on a server that is inaccessible at the moment. • The user does not have permission to log in to that particular host in the authentication system. • The machine has changed hostnames, for whatever reason, and the user does not have permission to log in to that host. • The machine cannot reach the authentication server or directory server that contains that user's information. • There might be problems with the X Window System authenticating this particular user, especially if the user's home has been used with another Linux distribution prior to installing the current one. To locate the cause of the login failures with network authentication, proceed as follows: 1 Check whether the user remembered his password correctly before you start debugging the whole authentication mechanism.
2 Determine the directory server the machine relies on for authentication and make sure that it is up and running and properly communicating with the other machines. 3 Determine that the user's username and password work on other machines to make sure that his authentication data exists and is properly distributed. 4 See if another user can log in to the misbehaving machine. If another user can log in without difficulty or if root can log in, log in and examine the /var/log/messages file. Locate the time stamps that correspond to the login attempts and determine if PAM has produced any error messages. 5 Try to log in from a console (using Ctrl + Alt + F1 ). If this is successful, the blame cannot be put on PAM or the directory server on which the user's home is hosted, because it is possible to authenticate this user on this machine. Try to locate any problems with the X Window System or the desktop (GNOME or KDE). For more information, refer to Section 9.4.3, “ Login Successful but GNOME Desktop Fails ” (page 230) and Section 9.4.4, “ Login Successful but KDE Desktop Fails” (page 230). 6 If the user's home directory has been used with another Linux distribution, remove the Xauthority file in the user's home. Use a console login via Ctrl + Alt + F1 and run rm .Xauthority as this user. This should eliminate X authentication problems for this user. Try a graphical login again. 7 If graphical login still fails, do a console login with Ctrl + Alt + F1 . Try to start an X session on another display, the first one (:0) is already in use: startx -- :1 This should bring up a graphical screen and your desktop. If it does not, check the log files of the X Window System (/var/log/Xorg.displaynumber .log) or the log file for your desktop applications (.xsession-errors in the user's home directory) for any irregularities. 8 If the desktop could not start because of corrupt configuration files, proceed with Section 9.4.3, “ Login Successful but GNOME Desktop Fails ” (page 230) or Section 9.4.4, “ Login Successful but KDE Desktop Fails” (page 230). Common Problems and Their Solutions 229
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SUSE Linux 10.1 April 07, 2006 Star
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Contents About This Guide vii Part
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6 Customizing Your KDE Desktop 165
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viii Start-Up SUSE Linux Reference
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Part I. Setup
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4 Start-Up 2 Reboot the system. 3 A
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6 Start-Up Use the function keys in
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8 Start-Up dows but does not provid
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10 Start-Up The partitions to creat
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12 Start-Up Figure 1.2 Possible Opt
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14 Start-Up The first bar graph sho
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16 Start-Up Other Filters Click the
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18 Start-Up 1.8.5 Keyboard Layout S
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20 Start-Up 1.9.2 root Password roo
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22 Start-Up If you have multiple ne
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24 Start-Up Figure 1.5 Entering the
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26 Start-Up settings. LDAP client c
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28 Start-Up AutoYaST is a system fo
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30 Start-Up To start YaST in text m
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32 Start-Up Figure 2.2 YaST Package
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34 Start-Up NOTE Because language-s
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36 Start-Up Installation Summary Af
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38 Start-Up Figure 2.3 Conflict Man
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40 Start-Up Find the list of availa
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42 Start-Up Backup During the updat
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44 Start-Up 2.4.2 Infrared Device C
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46 Start-Up satisfied with the sett
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48 Start-Up is provided at http://c
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50 Start-Up If YaST is unable to de
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52 Start-Up Standard Boot Floppy Us
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54 Start-Up point of the hard disks
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56 Start-Up If you partition manual
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58 Start-Up To edit a PCI ID, selec
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60 Start-Up Figure 2.5 Setting the
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62 Start-Up 2.7.1 Mail Transfer Age
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64 Start-Up LDAP Client If using LD
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66 Start-Up The YaST Remote Adminis
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68 Start-Up 2.9.2 Group Management
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70 Start-Up the options Current Dir
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72 Start-Up /proc/iomem This displa
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74 Start-Up Press Enter to start th
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2.11.3 Starting the Individual Modu
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78 Start-Up superuser Permits all r
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80 Start-Up Figure 2.8 Card and Mon
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82 Start-Up The tabs in the row at
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84 Start-Up Activate 3-Button Emula
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86 Start-Up 2.14 Troubleshooting Al
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Working with the Shell When booting
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IMPORTANT: No News Is Good News The
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3.1.2 Linux Directory Structure Bec
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in Programs needed early in the boo
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directory where you ran the command
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and paths with the help of →| , y
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sponding command. Both standard out
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such as installing new programs, ar
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3.2.2 Modifying File Permissions Ch
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3.3.1 File Commands The following s
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u g o User Group Others For access,
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locate patterns This command is onl
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-t filesystem Specify the file syst
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ps [options] [process ID] If run wi
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eboot [options] Does the same as ha
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H J K L Move one character to the l
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• A number of vim sources are ava
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124 Start-Up configuration of the s
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Figure 4.3 Generating a Search Inde
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128 Start-Up Another possibility to
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130 Start-Up 4.7 Package Documentat
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132 Start-Up concentrates on standa
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Part III. Desktop
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138 Start-Up boot. In this case, yo
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140 Start-Up main menu. Alter a sho
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142 Start-Up structure for accessin
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144 Start-Up Figure 5.3 Main Menu S
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146 Start-Up topmost directory is r
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148 Start-Up • Select the object
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150 Start-Up The group determines t
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152 Start-Up 4 Specify the folder t
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154 Start-Up where you want the tex
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156 Start-Up network passwords and
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158 Start-Up Figure 5.8 Ark: File A
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160 Start-Up Start KJobViewer from
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162 Start-Up filename for the image
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164 Start-Up To update system fonts
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166 Start-Up 5 Apply your changes a
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168 Start-Up In the Icons section,
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170 Start-Up shortcuts. For more in
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172 Start-Up The Country/Region & L
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174 Start-Up Login Manager configur
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176 Start-Up The program managing t
Page 188 and 189: 178 Start-Up 7.2 Logging Out When y
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Page 198 and 199: 188 Start-Up 3 Click Add to search
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Page 202 and 203: 192 Start-Up Option Date Modified L
Page 204 and 205: 194 Start-Up To open a file display
Page 206 and 207: 196 Start-Up Left-click the panel i
Page 208 and 209: 198 Start-Up account, open a file d
Page 210 and 211: 200 Start-Up To add a new channel,
Page 212 and 213: 202 Start-Up 8.1 Hardware Settings
Page 214 and 215: 204 Start-Up 8.2.3 Configuring the
Page 216 and 217: 206 Start-Up 8.3.1 Configuring Acce
Page 218 and 219: 208 Start-Up 8.4.3 Managing Session
Page 221: Part IV. Troubleshooting
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Page 240 and 241: 230 Start-Up 9.4.3 Login Successful
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Page 246 and 247: 236 Start-Up use traceroute fully_q
Page 248 and 249: 238 Start-Up 9.6.2 Restoring a Syst
Page 250 and 251: 240 Start-Up 1 Boot the system with
Page 252 and 253: 242 Start-Up Clicking Next starts a
Page 254 and 255: 244 Start-Up tion support for regis
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Page 258 and 259: 248 Start-Up We endeavor to help yo
Page 260 and 261: ping, 115 ps, 115 reboot, 117 rm, 1
Page 262 and 263: utilities, 195-200 grep, 112 groups
Page 264 and 265: S Samba clients, 66 servers, 66 SaX
Page 266: servers, 66 Samba clients, 26 scann
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